World's water ecosystems under threat

(PhysOrg.com) -- Human activities such as fishing and water use are over-riding the effects of global warming on the ecosystems that support the world’s water and fish supplies, experts have revealed.

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<p><a href="http://www.physorg.com/news140353662.html">World's water ecosystems under threat</a></p> <p>(PhysOrg.com) -- Human activities such as fishing and water use are over-riding the effects of global warming on the ecosystems that support the world’s water and fish supplies, experts have revealed.</p>